Reactance



June 2, 1925` D. J. ANGUS REACTANCE Filed Sepp?. 1922 Don/HL D .IH/veus;

Patented `une 2, 1925.

unirse STATES DONALD J. ANGUS, INDIANAPOLIS, INDIANA.

RiB-ACTANQE Appleation ,led September 2, 19.22 Serial No- 5.861033 To all whom t moy Concern:

B e it known that I, Donau; J- Airone, e citizen of the United States, residing at Indianapolis, in the County of Marion and State of Indiana, have invented a new ond neeinl Reaetanoe, of which the following iS n @SPeoifieation lt inthe object of my invention to proyide simple eonetroeton'ior a reaotaneer wherein'tlle `CQlfiducting element is made of straight eondneting bars laid. together, to get the eieet 'of en edgewiee winding but without any edgewise bending; wherein closed-loop laminat may be assiated with a eoridneting element without requiring the threading through the loop of a long' condnetor; wherein the magnetic element` is made of closed-'loop laminee through which the eondnoting' bare pees, whioh laminee here Central parte which 'eorne nearly ini@ Collin@ with eaeh other but are held apart in opera tion by the Strength of the laminee themselves against edgewise bending; end wherethe berne. elemping parte are need for `clamping 'the magnetic 'laminas and the Condnetingbars The accompanying drawing illuetratee my inYeXition Fig. 1 is a perspective View of a'flettetane embodying my invention Fig. 2 is a vert'ioal Seetion on the line 2-2 of Figl; Fig., 3 is a perspective view of the oondneting element; Fig 4 is an elevation oJi one of the laminas, with the conducting bars in their proper relative position thereto but ,section on the 'line 4 4 of Figi 5; end Fig., 5 is a plan of the conducting bars, with the magnetic element Yin proper relation thereto vbut in section on the line 5&5 of Fig e.

The reactanee comprises a magnetic element, o eondnoting element, end two pairs of clamping elements. The magnetic elcment is built up of lamina: l0, preferably of the shape shown in Fig. 4, Vhaving two spaced openings il through them, end having between Such openings two fingere. 12 Projecting inward toward` eaeh other but having their adjacent ends spaced apart to provide an air gap 13, making a total'opening in the shape, of the letter xH. The magnetic, element is built up O f a suitable number of these leminee- The conducting element isl built up of, a series of flat straight bars 15. These bars are leid together to. form e. rectangular oeil, es shown in Fig. 3., with interspersed blocks ot insulation 1 6 at the corners between suce `eeseire turns of the winding so that the bars 1.5 are all.. in Series, to iorm the winding. By suitable arrangement oi the bioeks 1.6 'and bers 11.5, desired arrongementfi of connecting the bare are Possible, but the simple series arrangement' ,is .shown- The here 15 at the beginning and. end ofthe winding are provided witlreonneeting pieces 17, whioh l proieet laterally may be provided with holes for reeeiving suitable oon.- neering bolts. In building nip the eondueting element, the bars l5 are'asselnbled One by one in the magnetic element, two .Sete of the bare i5 passing through the openings. ,1l in the laminae, and the other two sets of the bars 15 suitably connecting the ends of those bars which pass through the openings 1L c .e

There are two paire of clamping elemente, comprising twe ripper clamping e1emente'20 and two lOwer demping elemente 21- The upper Clamping elements (assuming that the rea'etanee ie to be hung from the peiling in Ythe manner customary)l have attaching Vfeet 22, with suitable perforated bosses 23 for the ettnehing bolts. The iaminee are clamped along their upper parts between the two olemping memberel 20` and along their o lower parte between the two clamping members l 21, by suitable clamping bolts 24 trans- Verse to the leminee and preferably in the plane of those bars which pass through the openings 1.1- The bars 15 composing the eondneting'element are clamped tightly together between the upper clamping members 2O and the lower elamping members 21, by elemping boite 2.5 transverse to the barsl 15 and preferably in the same planes transverse to the laminas 10 as are the clamping bolts 2,4. By this arrangement of clamping bolts 24 and 25, the strain on the clamping meinbers and 21 is localized in the planes of such bolts, and there is no tendency to bend the parts of the structure such as vthere would be if the bolts 24 were in different planes transverse to the lamin 10 from the bolts 25 and from the bars 15 which pass through the openings 11.

In'assembling the structure, the laminal 1 0 are put together to build up the desired magnetic element, and are clamped between the clamping members 2O and between the clamping members 21 by the clamping bolts 2.4. Then the conducting element isv built in plnee, by laying the bars 15 upon eaeh other With the insulation blocks 16 properly interspersed, and the bolts 25 are put 1n place and drawn tight to clamp the bars 15 tirmly together. The thickness of the conducting bars 15 is shown exaggeratedly 1n the drawing, for the sake of clearness, although in actual practice the thickness of the bars 15 and the blocks 16 would be less than that shown, and especially less than is shown in Figs. 2 and 3. By this method of construction, the` conducting element may be made of fiat strip Without the necessity for any edgewise bending of the strip, and With its attendant diliiculties and expense; and Without the threading of a long length of conductor through the openings l1. In addition, the laminae 10 may be made as complete laminae enclosing the conducting bars, and the magnetic pull Which exists tending to close the air gap 13 is resisted by the strength of the laminae 10 themselves against edgewise bending, Without the necessityy for any special clamping devices for resisting this pull such as are necessary in constructions in which the tWo lingers 12 are on separate laminae.

I claim as my invention:

1. A reactance, comprising a magnetic element and a conducting element, said magnetic element comprising a plurality of laminae With registering holes through them, and said conducting elemsnt comprising a plurality of metal bars built up with their ends overlapping to form a coiled conducting path, some of said bars passing through holes in the laniinae, and means for clamping said overlapping ends together.

2. A reactance, comprising a laminated magnetic element, a conducting element composed of a plurality of metal bars built Aup into the desired coil in inductive rela- "tion with said magnetic element, and two pairs of clamping members arranged so that each clamping member assists in clamping both the laminae and the bars.

A reactance, comprising a laminated magnetic element, a conducting element composed of a plurality of metal bars built up into the desired coil in inductive relation with said magnetic element, and two pairs of clamping members, each pair of clamping members being arranged to clamp the laminee between them, and opposite members of the two pairs' being arranged to clamp between them the built-up metallic bars.

4. In combination, a conducting element comprising a plurality or" metal bars laid together with their ends overlapping to forni a coil, a laminated magnetic element in inductive relation to such coil, insulating blocks interspersed with the overlapping ends of said bars to insulate adjacent turns apart, and clamping members for clamping together both said laminas and said bars', said clamping members being provided With clamping bolts arranged in planes in which the ends oi the bars overlap.

In combination, a laminated magnetic element, a conducting element in general transverse to the plane ot the laminae, said conducting element being built up into the desired coil from a plurality of metal bars having their ends overlapping, four Clamping members each having a face co-operating with the laminae and a tace (zo-operating with the conducting element, clamping bars interconnecting the elements on one side of the laminae with those on the other side, and clamping bars interconnecting the clamping members on one side of the conducting element with those on the other side.

6. In combination, a laminated magnetic element, a conducting element in general transverse to the plane of the laminae, four clamping members each having a face cooperating with the laminae and a face cooperating with the conducting element, clamping bars interconnecting the elements on one side of the laminae with those on the other side, and clamping bars interconnecting the clamping members on one side of the conducting element with those on the other side.

7. A reactance, comprising a magnetic element and a conducting element, said magnetic element consisting of laminae provided with` two sets of registering holes through them, and said conducting element consisting of a plurality of straight fiat metal bars built into a substantially rectangular coil by having both ends of each flat baroverlapping ends of two other bars, alternate Hat bars extending through the holes in the lamintc, and means for clamping said overlapping ends together.

8. A reactance, comprising a magnetic element and a conducting element, said magnetic element consisting of laminae provided with two sets of registering holes through them, and said conducting element consisting of a plurality of straight Hat metal bars built into a substantially rectangular coil by having both ends of each flat bar overlapping ends ot two other bars, alternate flat bars extending through the holes in the laminae, insulating blocks interspersed at the corners of said coils to separate adjacent turns thereof, and means for clamping said overlapping ends and blocks together.

9. A reactance, comprising a magnetic element and a conducting element, said magnetic element comprising a plurality of laminze with registering holes through them, and said conducting element comprising a plurality of metal bars built up with their ends overlapping to form a coiled conducting path, some of said bars passing through holes in the laminae, insulating blocks interspersed with said overlapping ends to insulate adjacent turns apart, and means for clamping said overlapping ends and insulating blocks together.

l0. ln combination, a conducting element comprising a plurality ot' metal bars laid together with their ends overlapping to form a coil, a laminated magnetic element in inductive relation to said coil, insulating blocks interspersed with overlapping ends ot said bars to insulate adjacent turns apart. and means lor clamping together said overlapping ends and the blocks interspersed therewith.

ll. A reactance, comprising a magnetic element composed oi a plurality of laminae, a conducting element in inductive relation to Said magnetic element and built up of a plurality of separate metal bars laid together with their ends overlapping and 1 common means for clamping together both said laminac and said bars.

l2. A rcactance, comprising a magnetic element composed of a plurality of laminze, a conducting element in inductive relation to said magnetic element and built up of a plurality ot' separate metal bars laid together with their ends overlapping, and

means for clamping together both said laminae and said bars.

in witness whereof, l have hereunto set my hand at indianapolis, Indiana, this 29th day of August, A. D. one thousand nine hundred and twenty-two.

DONALD J. ANGUS. 

